Home / 99,308.70-137,011.77-56,282.04

Finding the Fourth Proportional to 99,308.70, 137,011.77 and 56,282.04

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Solution

The fourth proportional to 99,308.70, 137,011.77 and 56,282.04 is: 77,649.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,308.70 : 137,011.77 = 56,282.04 : x
  2. Step 2: Convert to fraction form
    99,308.70/137,011.77 = 56,282.04/x
  3. Step 3: Cross multiply
    99,308.70x = 137,011.77 × 56,282.04
  4. Step 4: Simplify right side
    99,308.70x = 7,711,301,919.61
  5. Step 5: Solve for x
    x = 7,711,301,919.61/99,308.70
  6. Step 6: Final answer
    x = 77,649.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.